Oxidation dyeing composition for keratin fibers, especially human hair, giving strong, even, fast dyeings

摘要

An oxidation dyeing composition for keratin fibers, especially human keratin fibers such as hair, contains: (A) a pyrazolo (1,5-a) pyrimidine derivative oxidation base (I); (B) N,N'-bis-( beta -hydroxyethyl)-N,N'-bis-(4-aminophenyl)-1,3-diaminopropanol (II) as second oxidation base; and (C) a meta-phenylene diamine (III) or a meta-aminophenol derivative (IV) as coupler. An oxidation dyeing composition for keratin fibers comprises a dyeing medium containing (A) at least one oxidation base selected from pyrazolo (1,5-a) pyrimidines of formula (I) and their acid or base addition salts, (B) at least one second oxidation base selected from N,N'-bis-( beta -hydroxyethyl)-N,N'-bis-(4-aminophenyl)-1,3-diaminopropanol (II) and its acid addition salts and (C) at least one coupler selected from meta-phenylene diamines (III), meta-aminophenols of formula (IV) and their acid addition salts: R1-R4 = H, alkyl, aryl, hydroxyalkyl, 2-4C polyhydroxyalkyl, alkoxyalkyl, aminoalkyl (optionally N-protected by acetyl, ureido or sulfonyl), alkylamino, dialkylaminoalkyl (where the two alkyls may together from 5- or 6-membered aliphatic or heterocyclic ring) or mono- or di-(hydroxyalkyl)-aminoalkyl; X = H, alkyl, aryl, hydroxyalkyl, 2-4C polyhydroxyalkyl, aminoalkyl, alkylamino, dialkylaminoalkyl (where the two alkyls may together from 5- or 6-membered aliphatic or heterocyclic ring), mono- or di-(hydroxyalkyl)-aminoalkyl, NH2, mono- or dialkylamino, halo, COOH or SO3H; i = 0-3; n, p, q = 0 or 1, provided that (i) p and q are not both 0, (ii) if p + q = 2, then n = 0 and the NR1R2 and NR3R4 groups are in the (2,3), (5,6), (6,7), (3,5) or (3,7) positions and (iii) if p + q = 1 then n = 1 and the NR1R2 (or NR3R4) and OH groups are in the (2,3), (5,6), (6,7), (3,5) or (3,7) position; R5, R8 = H, halo, alkyl, monohydroxyalkyl, 2-4C polyhydroxyalkyl, alkoxy, monohydroxyalkoxy or 2-4C polyhydroxyalkoxy; R6 = H, alkyl, monohydroxyalkyl, 2-4C polyhydroxyalkyl or aminoalkyl; R7 = H, alkyl, alkoxy, Cl, Br or F; provided that if R5 = Cl and R6 = R7 = H, then R8 is other than Me; alkyl moieties have 1-4C unless specified otherwise. Independent claims are included for: (i) a method for dyeing keratin fibers, involving applying a dyeing composition as above and developing the color at an acid, neutral or alkaline pH using an oxidizing agent (added to the dyeing composition immediately before use or present in an oxidizing composition applied simultaneously or sequentially); and (ii) a multi-compartment dyeing kit, including a compartment containing the dyeing composition and another compartment containing an oxidizing composition.